World number 509 Wallie Coetsee, who has recorded one top-10 finish in 37 European Tour events, will take a two-shot lead into the final round of the Joburg Open on Sunday.

A third round of 70 was surprisingly enough for Coetsee to double his overnight advantage on a crowded leaderboard at Royal Johannesburg and Kensington Golf Club.

The 42-year-old South African three-putted the par-five first for par and the fourth for a bogey, but recovered to birdie the ninth and then card a hat-trick of birdies from the 11th after another dropped shot on the 10th.

A bogey on the 16th reduced Coetsee's lead to a single shot before a superb pitch to the 18th set up a closing birdie.

"The first tee shot there were no nerves, the six iron into the middle of the green there were no nerves, but once I grabbed that putter there was no feel," Coetsee admitted. "I three-putted but after that, there were no nerves.

"You need to keep a positive mind, me and my caddie are enjoying it out there and hopefully we can tomorrow.

"There is a lot at stake, more than you can think of, but it's just a game at the end of the day. Last night I only slept for about four hours but tonight I think I'm going to have a lot of sleep."

At 14 under par Coetsee was two ahead of compatriots Jacques Blaauw and Tjaart van der Walt, as well as English duo Steve Webster and David Howell.

The top 14 places featured eight South Africans and six Englishmen, with defending champion George Coetzee and South African Open winner Andy Sullivan among a nine-strong group on 11 under.

Ireland’s Kevin Phelan registered a birdie and two bogeys in his round of 71 as he dropped to nine under for the tournament.